25x30x1 MERV 14 AC Furnace Filters 6 Pack soil and our proprietary compost extract

and our proprietary compost extract base

Built with 3 customizable channels for blooming

Downy Mildew

Safe to beneficial or large insects such as bees

The Bluelab In-line pH Probe can screw directly into female 1" NPT pipe fittings using the included adapter

25x30x1 MERV 14 AC Furnace Filters 6 Pack soil and our proprietary compost extractNordic Pure MERV 14 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.